TLA Systems has released an update to PCalc for iOS adding support for user-defined constants and new functions from the Mac OS X version. PCalc is an advanced universal calculator app designed for scientists, engineers and programmers that provides an optional RPN mode with customizable button layouts, extensive unit conversions and numerous advanced calculation and notation features. Version 2.6 now allows users to add and edit their own constants which can be exported via e-mail for importing to PCalc on other devices or simply synced across multiple devices automatically using iCloud.
PCalc 2.6 also brings over all of the functions from the Mac OS X version, including Complex Numbers and Financial categories, accessible using a new f(x) button. Additional enhancements include the ability to show up to eight lines on the display, a new density section for conversions and general user interface improvements. PCalc is a universal app and is free Lite version is also available that provides a more basic set of features, allowing users to customize the app by purchasing the specific feature packs they need via in-app purchase; PCalc Lite has also received the same updates for those users of the relevant feature packs.